Cleaning fluids should be kept out of the reach of children.

　　洗滌劑應(yīng)該放在兒童夠不到的地方。

　　I spent hours cleaning the house, but there isn't much to show for all my efforts.

　　我花了幾個(gè)小時(shí)來打掃房子，但費(fèi)了這么大力氣卻看不到多少效果。

　　The exhibition is not open to the general public.

　　這次展覽不對(duì)公眾開放。